Thoroughly wash the apples. You do not need to peel the apples, but you can if you want to. You can also core the apple, but again, it’s not necessary. Thinly slice the apples, they should be about 1/8th of an inch thick.
Coat the apples in a little bit of lemon juice to prevent browning. Optional: You can also sprinkle the apples with cinnamon or pumpkin pie spice.
Lay out the apples on the dehydrator trays, leaving a little space between each apple. If your food dehydrator has a temperature setting, set it to 140 degrees. Turn on your dehydrator and begin dehydrating apples.
After 1 hour, flip apple chips over to prevent sticking. Flip again around the 2 hour mark. After 2 hours, the apples should be dry enough that they won’t stick, so you’ll no longer need to flip them.
Because every apple variety is different, and every dehydrator works a little differently, the apple chips will need to be dehydrated for 8-12 hours. So after 8 hours, check on the chips every hour. You’ll know the chips are done when they are not soft or flexible at all.
When apples are fully dehydrated, store them in an airtight container or they’ll get soft again.